Had this clown pair since October 2021. They have never paid attention to BTAs, despite having had many BTAs in their tanks. Their "hosts" have included: Dual RFGs, Caulastrea (till they knocked it over for the last time and I moved it) and a toadstool. Their longest running host was the dual RFGs in the EVO 13.5g nano they first lived in. No RFGs in this tank, so guess they're doing their best with what they've got. As of today, the RBTA is Madam Clown's new, probably unwilling, host.